Never mind what others do do better than yourself beat your own record from day to day and you are a success.
Your success depends mainly upon what you think of yourself and whether you...
You can take Elvis. You can take Marilyn Monroe. Success and fame will not be...
Even if you're improvising the fact that beforehand you know certain things will work helps you make those improvisations successful. It really helps to have a certain amount of knowledge about musical structure.